Electric-lamp-socket cap.



i 1 W aqaflflomaual I Patented Mar; 21, 191.1.

G. W. GOODRIDGE.

ELECTRIC LAMP SOCKET GAP. APPLICATION FILED JAN. 10. 1911.

manufacturing on a large scale, to insure RIDGE, a citizen of 2 is a side elevation of the finishedca UNITED STATES PATENT OFFICE.

ELECTRIC ('iOllllZPAlSl'Y, 0F BRIDGEPORT, CONNECTICUT, A CORPORATION OF CON- NECTICUT.

' I ELECTBIC-LAMP-SOCKET CAP.

987 ,356. Specification 01 Letters Patent.

Patented Mar. 21, 1911- Application filed January 10, 1911 Serial No. 601,823. I

Be it known that I, GILBERT W. Goonthe cap butalso to support the lower edge of the United" States of the insulating lining L which fits within the America, and residing at Bridgeport, in the dome ,B of the cap and hold the same in county of Fairfield and State 0 Connecticut, position. It is thus obvious that not only is have invented a certain new and useful Imthe rolling over of the lower edge of the ring provement in Electric-Lamp-Socket Caps, of done away with-,' and the accompanying danwhich the following is a specification. I ger of interference with the proper function My invention has particular reference to of the cap and shell latching elements the cap for a lamp socket casing of the type avoided, but. also that it is unnecessary to illustrated in my Patents 872,283 and. provide the cap with the supplemental lin- 958,625, and the object of my invention is to ing-holding means usually provided. I At improve the method of fastening the reinthe same time all the advantages of the conforcing ring on the cap, as herewith shown structions of my earlier patents are retained. and described. I claim as my invent-ion:-

In the accompanying drawings, Figure 1 1. An electric lamp socket cap having a is a perspective of a socket cap with the reinshouldered skirt with latching elements forcing ring in position to be adjusted; Fig.

To all whom it may concern: (Fig. 2, and servenot only to lock the ring to forated, in combination with an inc osmg ring having tongues enterin tions of said shoulder and lock said ring described.

2. An electric lamp socket cap having a shouldered skirt with latching elements thereon, the shoulder of said skirt bein perforated, in combination with an inc osing ring having tongues entering the perforations in said shoulder and being offset to lock said ring on said cap, together with. an insulating lining for said cap engaged by said oflz'set tongues, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

GILBERT W. eoonnin'on, I

Witnesses H. M. Wronnn'r, A. J. Wa'rERHoUsn.

partly in section and in positionto be a justed upon theshell; and Fig. 3 is ,an enlarged cross section of a detail.

It-has been found extremely difiicult when eing ofiset to the exact proportioning of the reinforcing ring with relation to the corrugated skirt of the cap, and it not infrequently hap ens that the lower edge of the rin when r0 led over beneath the lower edge 0 the skirt projects inwardly so far as to interfere with the proper engagement of the latching elements of the shell and cap, thereby necessitating a special machining operation to remove the protruding metal. To obviate this trouble, I now propose to 1provide the inwardly projecting flange f o the ring F with tongues G which enter slots g in the shoulder e at the upper edge of the corrugated skirt D of the cap when the ring is placed thereon. After the adjustment of the ring, the tongues G are ofl'set inwardly as shown in Copies of this patent may be obtained for five cents each, by addressing the Gorimissioner of Patents.

Washington, D. O.

the perforav on said cap, substantially as thereon, the shoulder of said skirt bein per- 

